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Interoperable and Unified Multimedia Retrieval]{Interoperable and Unified Multimedia Retrieval in Distributed and Heterogeneous Environments
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Interoperable and Unified Multimedia Retrieval]{Interoperable and Unified Multimedia Retrieval in Distributed and Heterogeneous Environments

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In this abstract, the research topics of my doctoral thesis will be introduced. These emerged within THESEUS, in which I work as a third-party funded researcher. The overall aim of my work is to …

In this abstract, the research topics of my doctoral thesis will be introduced. These emerged within THESEUS, in which I work as a third-party funded researcher. The overall aim of my work is to provide unified and interoperable multimedia retrieval in distributed and highly heterogeneous environments. In this case, I am focusing on multimedia databases, multimedia metadata formats, semantic web technologies as well as international standardization (MPEG/JPEG and W3C).

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  • 1. Motivation Research topics Conclusion Interoperable and Unified Multimedia Retrieval in Distributed and Heterogeneous Environments Florian Stegmaier Supervisor: Harald Kosch Co-Supervisor: Mario D¨oller Chair of Distributed Information Systems University of Passau, Germany October 26th, 2010 Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 2. Motivation Research topics Conclusion Outline of this talk 1 Motivation Multimedia retrieval in today’s world Distributed and heterogeneous retrieval use cases 2 Central research question How to provide an unified access to distributed and heterogeneous environments? How can query semantic be maintained during metadata and query language transformation? Can query classification and backend benchmarking establish an efficient / intelligent data fusion process? 3 Conclusion Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 3. Motivation Research topics Conclusion Multimedia retrieval in today’s world Distributed and heterogeneous retrieval use cases Multimedia retrieval in today’s world Multimedia data can be produced, published and consumed by everybody everywhere at any time Petabytes of multimedia data and metadata stored and offered in popular systems Central research topics i am facing in my PhD thesis Unified multimedia retrieval, metadata interoperability, query expansion and data fusion Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 4. Motivation Research topics Conclusion Multimedia retrieval in today’s world Distributed and heterogeneous retrieval use cases Use cases for distributed and heterogeneous retrieval Local query processing Find images which are similar to “aGivenImage.jpg” and annotated with “vacation” and taken at “Lake Garda”! Distributed query processing Medical examination system Image Retrieval System (CT Scans) DICOM (patient data) RDF triple store(diseases and anatomy) query query query Select CT scan, where disease is “lesion”, anatomy “near liver” and the CT scan is similar to “aGivenCTScan.jpg”! Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 5. Motivation Research topics Conclusion Unified access to distributed environments Metadata interoperability and query transformation Efficient / intelligent data fusion process Unified access to distributed, heterogeneous environments Two fundamental decisions: supported query language: MPEG Query Format (query language & management capabilities), JPSearch compliant for still images architecture: external metasearch engine Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 6. Motivation Research topics Conclusion Unified access to distributed environments Metadata interoperability and query transformation Efficient / intelligent data fusion process Syntactic metadata transformation JPSearch transformation rules1: XML based JPSearch Core Schema as pivot metadata schema registration, identification and management of metadata schemas and transformation rules 1 Presented at SAC2010 (Track ASIIS). Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 7. Motivation Research topics Conclusion Unified access to distributed environments Metadata interoperability and query transformation Efficient / intelligent data fusion process Semantic and syntactical metadata transformation W3C Ontology and API for Media Ressource2: Ontology based Media Ontology as pivot metadata schema syntactic mappings by the use of rules, semantic mapping expressed by e.g. SKOS 2 Reference implementation will be presented as Demo at SAMT2011 – online at: http://mawg.joanneum.at/ Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 8. Motivation Research topics Conclusion Unified access to distributed environments Metadata interoperability and query transformation Efficient / intelligent data fusion process Query reformulation and expansion Issue during metadata transformation: maintain query semantic Dynamic query expansion “Google-like” search inserting new data sources while query execution (e.g., extracting metadata of a Query-By-Example and forward this to a metadata based retrieval service or use of the linked data cloud) Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 9. Motivation Research topics Conclusion Unified access to distributed environments Metadata interoperability and query transformation Efficient / intelligent data fusion process Knowledge based data fusion process Knowledge based on: Benchmarking content based multimedia retrieval Classification of MPEG query format requests → estimating retrieval quality of connected data sources to choose appropriate algrithms3 3 Presented at AMR2010. Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 10. Motivation Research topics Conclusion State of research Discussion State of research Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval
  • 11. Motivation Research topics Conclusion State of research Discussion Discussion Thank you for your attention . . . . . . any questions? Contact informations: Email: florian.stegmaier@uni-passau.de Twitter: http://www.twitter.com/fstegmai Presenter: Florian Stegmaier, University of Passau ACMMM10 – Interoperable and Unified Multimedia Retrieval